题目翻译

kunkka很好吃，味道应有尽有，有四种味道，请你寻出最受欢迎的味道（输出最大的数）。

Background

Kunkka, also known as marmot, Takahashi-kun thinks it is very delicious, there are steamed, there are cold salad, there are sweet and sour, there are braised and barbecue, the suitors like to eat kunkka very much, however, there is a difference in taste, please jump out of the suitors' favorite taste.

Description

Enter four numbers to determine who is bigger.

Input

4 numbers.

Output

The largest number

Samples

100 200 99 300

300

Limitation

1s, 1024KiB for each test case.